Solutions by everydaycalculation.com
1st number: 18/20, 2nd number: 2 9/20
1820 + 4920 is 6720.
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Related: 36/20+49/20 18/20+98/20 18/40+49/20 18/20+49/40 54/20+49/20 18/60+49/20 18/20+49/60 90/20+49/20
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